Switch-stand.



A. A. STROM. SWITOH STAND. Arrmouron num JULY 15, 1909.

Patented Sept. 21, 1909. 4 SHEETS-SHEET 1.

A, A. STROM.

SWITCH STANDS APPLIUATION FILED JULY 15, 190s.

934,851. Patented sept. 21, 1909.

4 SHEETS-SHEET 2.

A. A. STROM.

SWITCH STAND.

APPLIDATIDH FILED JULY 15, 1999.

934,851 Patented s811121, 1999.

4 SHEETS-Emi* 8.

A. /f/f;

A. A'. VS'I'RM.

. SWITCH STAND.

APPLIUATIOH FILED JULY 15. 190e.

934,851 Patented Sept. 21, 1909.

4 BHEETB-SHEET 4.

Messes' Z f H Iv /z/VZW 74 /3 fffmwdzrm, f 9%@ UNITED STATES PATENTOFFICE.

AXEL A. STRGM, UF AUSTIN, ILLINOIS, ASSIGNOR T0 PETTIB-ONE, MULLIKEN &C0., F CHICAGO, ILLINOIS, .A CORPGRATION 0F ILLINOIS.

ib all whom it may covwern:

Be it known that l, AXEL A. S'rnom, a citizen of the United States,residing at Austin, in the county of Cook and b'tabeof Illinois, haveinvented a new and useful Improvement in Switch-Stands, of which thefollowing is a specification.

My invention relates to an improvement in the class of switch-stands inwhich the throwing of the switch 'is controlled by a weighted leverconnecte with it through the stand and ada ted to be turned through anarc of a circ e in a vertical plane to operate the switch.

Referring to the accompanying drawings- Figure 11 is a plan viewillustrating a switchstand embodying my invention and showing, by dottedrepresentation, the mechanism housed' in the casing of the stand and theposition of the'parts opposite thaty denoted by the full-linerepresentation of the `weighted lever. Fig. 2 is a view like thatpresented in Fig. 1, but withlthe crownportion of the casing cut away todisclose the mechanism housed within it. Fig. 3 is a View showing theswitch-stand in end elevation. Figs. 4 and 5 are sections taken, resectively, on the lilies 4 and 5 in Fig. l an viewed as indicated byarrows. Fig. G is a View, in the nature of a diagram, show in the shapeof the cam-slot in the casing, with which the weighted lever coperatesfor operating the switch; and Fig. 7 is a similar View of the same in amodified forni. The casing 8 comprises a crown-portion 9 of generallyrounded sha l e, with laterallyextending Wings 10, l0 a apted to seat onhead-blocks 11, and with yoke-like extensions l2 at right-angles tou theWings, for supporting a reciprocating switch-bar, preferably through themedium of a metal bal 13 extending between the yokes and bolted theretothrough its end-portions. VOn this bar is imposedthe reciprocatingswitch-bar 14, one end of which is adapted to have pivotally joined toit the connecting-bar (indicated at C in Fig. 1) which links the switchto the operating mechanism of the stand.

A cam-slot 15 is formed in the crown Si to extend at a suitableinclination between the relatively-odset wings 10 and of the shaperepresented in Fi'. 6 or that represented in Fig. 7, which atter differsfrom the former in terminating in straight end- Speccation of LettersPatent.

Application filed. .Tuly 15, 190B. Serial No.' 507,854.

Patented Sept. .151., .HMH

sections lo', for the purpose hereinafter es" planed. Similarbearinghars 1T, 1"( surniount, in spaced relation, and are riveted tothe bar 14 to bepractically integral there with, and they terminate attheir inner end` in relatively-Mining socket-heads 18 .term ing bearingsfor the trunnion-ends ot .i

yoke 19 provided between. said ends4 .with a soclteted extension 20, inwhich is fas-tei. as by riveted pin 21, the inner end of ff operatinglever 22, which preferably carri a weight 23 on its outer end. On theleves.. adjacent to the part1 20, where the lut-'cr is.

of round cross-section, is rotatably nominee..

to work in the cam-slot, a beveled antitrr tion roller 24.

The shape and length of the earn-slot 1f are such as to cause turning ofthe lever on its fulcrum from the posltion shown h5 its full-linerepresentation to that repro sented by dotted lines, or .in the contrarydlrection, to etl'cct a complete throw of the swlteh for setting it oneway or the other;

and at the ends of the throw of the Jever" 1t bears against thesuitably-inclined shout der-portions of the seatingwiugs lo. provided asstops for the lever. This` rf sult is due to `the action of the calusloagainst thelever, through the lnedinin ot the roller 24, of moving thehar 11 lengthwise through the guidlng yokes 12 on its. support 13.

As thecanbslot' is shown in Fig. n n adapts the switch-stand to beoperated trein the switch by the wheels of a. car moving c.

`the switch is resisted by the resultan'. nu

pingement of the roller against a purper dicular Wall of a section 16 ofthe canislot.

VVl'leI'e a tar et Q5 (Fig. 1), lump or other form of sema lore isprovided to cooperate with the swite i-operating mechanisn'i, it 1n aybe supported in a usual manner on a vertical rotary spindle Q6, which inthe present case ie shown to be jonrnaled in a bearing' 2T rising fromthe casing 8 and carrying on its lower end a crank-arrn 28, in which isi journaled one end of a crank 29 having its ogposite end journaled in abearing 30 in the a jacent socketfhead 18. This double-crank ponnectionwith the bar 14 of the target rotates the latter through a quarter-turn(as indicated in'Fig. l) each time the switch wlngs projecting fromopposite sides in olfi set relation to each other, with a camslot in thecrown-portion inclinin between said wings, switch-throwing rnec anism inthe Casin and an operating lever connected with said mechanism andVactuated by ite` movement through said slot to move said mechanism inthe direction for throwing a switch.

2. In a switch-stand, the combination of a. cesing comprising acrown-portion havin wings projecting from opposite sides in o )i Inpresence of` i Het relation to each other, with a czuneslot in ;thecrown-portion inclining between said Winge and stop-forming levelseateon the wings :it the ends of Said lslot, switclrthrowing mechanism inthe casing, und :in operating lever connected with said mechanism l undcarrying un anti-friction roller eng'ng ing the cam-slot to actuate thelever by its movement through said slot to move said mechanism in thedirection for throwing n switch.

3.l In a switchetundhe combination of :1

l cnsmg comprising :1 crown-portion h'nving 40 Wings projecting fromopposlte sides in otrf set relation to each other, with a cam-slot inthe crown-portion extending between said Wings, a switclrbar support atthe casing-base,.-a switch-bar longitudinally movi nble on said support,und :m operating lever i connected with said switch-bar for moving it bythe throw of the lever through the cam-slot.

AXEL A. STROM.

R. A. RAYMOND, L. HEISLAR.

